(Non)radial Solar Wind Propagation through the Heliosphere

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F20%3A00532738" target="_blank" >RIV/68378289:_____/20:00532738 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10415412

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.3847/2041-8213/ab9ff7" target="_blank" >https://iopscience.iop.org/article/10.3847/2041-8213/ab9ff7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/2041-8213/ab9ff7" target="_blank" >10.3847/2041-8213/ab9ff7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

(Non)radial Solar Wind Propagation through the Heliosphere

Popis výsledku v původním jazyce

The solar wind nonradial velocity components observed beyond the Alfven point are usually attributed to waves, the interaction of different streams, or other transient phenomena. However, Earth-orbiting spacecraft as well as monitors at L1 indicate systematic deviations of the wind velocity from the radial direction. Since these deviations are of the order of several degrees, the calibration of the instruments is often questioned. This paper investigates for the first time the evolution of nonradial components of the solar wind flow along the path from 0.17 to 10 au. A comparison of observations at 1 au with those closer to or farther from the Sun based on measurements of many spacecraft at different locations in the heliosphere (Parker Solar Probe, Helios 1 and 2, Wind, Advanced Composition Explorer, Spektr-R, Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) probes, Mars Atmosphere and Volatile Evolution (MAVEN), Voyagers 1 and 2) shows that (i) the average values of nonradial components are not zero and vary in a systematic manner with the distance from the Sun and (ii) their values significantly depend on the solar wind radial velocity.

Název v anglickém jazyce

(Non)radial Solar Wind Propagation through the Heliosphere

Popis výsledku anglicky

The solar wind nonradial velocity components observed beyond the Alfven point are usually attributed to waves, the interaction of different streams, or other transient phenomena. However, Earth-orbiting spacecraft as well as monitors at L1 indicate systematic deviations of the wind velocity from the radial direction. Since these deviations are of the order of several degrees, the calibration of the instruments is often questioned. This paper investigates for the first time the evolution of nonradial components of the solar wind flow along the path from 0.17 to 10 au. A comparison of observations at 1 au with those closer to or farther from the Sun based on measurements of many spacecraft at different locations in the heliosphere (Parker Solar Probe, Helios 1 and 2, Wind, Advanced Composition Explorer, Spektr-R, Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) probes, Mars Atmosphere and Volatile Evolution (MAVEN), Voyagers 1 and 2) shows that (i) the average values of nonradial components are not zero and vary in a systematic manner with the distance from the Sun and (ii) their values significantly depend on the solar wind radial velocity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GA19-18993S" target="_blank" >GA19-18993S: Přenos energie variací slunečního větru z velkých do malých škál</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

—

Svazek periodika

897

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

L39

Kód UT WoS článku

000553254700001

EID výsledku v databázi Scopus

2-s2.0-85088646311